55638322 has 4 divisors (see below), whose sum is σ = 83457486. Its totient is φ = 27819160.

The previous prime is 55638313. The next prime is 55638347. The reversal of 55638322 is 22383655.

It is a happy number.

55638322 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 33651601 + 21986721 = 5801^2 + 4689^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13909579 + ... + 13909582.

Almost surely, 2^55638322 is an apocalyptic number.

55638322 is a deficient number, since it is larger than the sum of its proper divisors (27819164).

55638322 is a wasteful number, since it uses less digits than its factorization.

55638322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27819163.

The product of its digits is 43200, while the sum is 34.

The square root of 55638322 is about 7459.1100005296. The cubic root of 55638322 is about 381.7608080184.

The spelling of 55638322 in words is "fifty-five million, six hundred thirty-eight thousand, three hundred twenty-two".